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https://issues.apache.org/jira/browse/SQOOP-779?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13532886#comment-13532886
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Cheolsoo Park commented on SQOOP-779:
-------------------------------------
This can be reproduced using a table without primary key. In
{{GenericJdbcImportInitializer}}, the boundary query returns nulls for min and
max. Now {{org.apache.sqoop.connector.jdbc.partition.maxvalue/minvalue}} are
set to nulls, and the above exception is thrown when submitting the job.
> Sqoop2: NPE when JobConnectorContext has a null value
> -----------------------------------------------------
>
> Key: SQOOP-779
> URL: https://issues.apache.org/jira/browse/SQOOP-779
> Project: Sqoop
> Issue Type: Bug
> Affects Versions: 1.99.1
> Reporter: Cheolsoo Park
> Assignee: Cheolsoo Park
> Fix For: 1.99.1
>
> Attachments: SQOOP-779.patch
>
>
> When ConnectorContext has a null value, the following code throws NPE:
> {code:title=MapReduceSubmissionEngine.java}
> // Serialize connector context as a sub namespace
> for(Map.Entry<String, String> entry :request.getConnectorContext()) {
> configuration.set(
> JobConstants.PREFIX_CONNECTOR_CONTEXT + entry.getKey(),
> entry.getValue());
> }
> {code}
> The call stack looks like this:
> {code}
> Stack trace:
> at java.util.Hashtable (Hashtable.java:394)
> at java.util.Properties (Properties.java:143)
> at org.apache.hadoop.conf.Configuration (Configuration.java:784)
> at org.apache.hadoop.conf.Configuration (Configuration.java:767)
> at org.apache.sqoop.submission.mapreduce.MapreduceSubmissionEngine
> (MapreduceSubmissionEngine.java:147)
> at org.apache.sqoop.framework.FrameworkManager
> (FrameworkManager.java:424)
> at org.apache.sqoop.handler.SubmissionRequestHandler
> (SubmissionRequestHandler.java:112)
> at org.apache.sqoop.handler.SubmissionRequestHandler
> (SubmissionRequestHandler.java:98)
> at org.apache.sqoop.handler.SubmissionRequestHandler
> (SubmissionRequestHandler.java:68)
> at org.apache.sqoop.server.v1.SubmissionServlet
> (SubmissionServlet.java:44)
> at org.apache.sqoop.server.SqoopProtocolServlet
> (SqoopProtocolServlet.java:63)
> at javax.servlet.http.HttpServlet (HttpServlet.java:637)
> at javax.servlet.http.HttpServlet (HttpServlet.java:717)
> at org.apache.catalina.core.ApplicationFilterChain
> (ApplicationFilterChain.java:290)
> at org.apache.catalina.core.ApplicationFilterChain
> (ApplicationFilterChain.java:206)
> at org.apache.catalina.core.StandardWrapperValve
> (StandardWrapperValve.java:233)
> at org.apache.catalina.core.StandardContextValve
> (StandardContextValve.java:191)
> at org.apache.catalina.core.StandardHostValve
> (StandardHostValve.java:127)
> at org.apache.catalina.valves.ErrorReportValve
> (ErrorReportValve.java:103)
> at org.apache.catalina.core.StandardEngineValve
> (StandardEngineValve.java:109)
> at org.apache.catalina.connector.CoyoteAdapter
> (CoyoteAdapter.java:293)
> at org.apache.coyote.http11.Http11Processor
> (Http11Processor.java:861)
> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler
> (Http11Protocol.java:606)
> at org.apache.tomcat.util.net.JIoEndpoint$Worker
> (JIoEndpoint.java:489)
> at java.lang.Thread (Thread.java:662)
> {code}
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